en_tn_condensed/isa/21/05.md

They prepare

Here "They" refers to the leaders of Babylon.

prepare the table

Here "table" represents the food that people will eat at the feast. (See: rc://en/ta/man/jit/figs-metonymy)

arise, princes

Here "princes" refers in general to men with authority and not necessarily to sons of kings.

anoint your shields with oil

Soldiers would put oil on their leather shields so they would stay soft and not crack during battle. (See: rc://en/ta/man/jit/figs-explicit)